PMID- 31413292 OWN - NLM STAT- MEDLINE DCOM- 20201109 LR - 20210110 IS - 2045-2322 (Electronic) IS - 2045-2322 (Linking) VI - 9 IP - 1 DP - 2019 Aug 14 TI - The influence of the chosen in vitro bone simulation model on intraosseous temperatures and drilling times. PG - 11817 LID - 10.1038/s41598-019-48416-6 [doi] LID - 11817 AB - There is no consensus about the most suitable in vitro simulating material investigating heat generation during bone preparation. The aim was to compare heat increases and drilling times of bone removals in different bone simulating materials and to compare them to fresh human cadaver bone. A cavity was drilled in the following samples: (1) bovine rib; (2) pig rib; (3) 20 PCF (lb/ft(3)) polyurethane (PU) block with 3 mm (50 PCF) cortical layer; (4) 20PCF PU without cortical; (5) 30 PCF PU with 2 mm (40 PCF) cortical; (6) 30 PCF PU with 1 mm (40 PCF) cortical; (7) 30PCF PU without cortical; (8) poly-methyl-methacrylate (PMMA); (9) fresh human cadaver rib. Data were analyzed with ANOVA followed by Tukey's post hoc tests. P < 0.05 was considered significant. Highest heat increases and slowest drilling times were found in bovine ribs (p < 0.001). Regarding temperatures, human ribs were comparable to the pig rib and to PUs having cortical layers. Considering drilling times, the human rib was only comparable to the 20 PCF PU with 3 mm cortical and to 30 PCF PU without cortical. By the tested in vitro bone removals, only the 20 PCF PU with 3 mm cortical was able to simulate human ribs, considering both temperature increases and drilling times. FAU - Szalma, Jozsef AU - Szalma J AUID- ORCID: 0000-0002-6006-8758 AD - University of Pecs, Medical School, Department of Oral and Maxillofacial Surgery, 5. Dischka, 7621, Pecs, Hungary. szalma.jozsef@pte.hu. FAU - Lovasz, Balint V AU - Lovasz BV AD - University of Pecs, Medical School, Department of Oral and Maxillofacial Surgery, 5. Dischka, 7621, Pecs, Hungary. FAU - Vajta, Laszlo AU - Vajta L AD - University of Pecs, Medical School, Department of Oral and Maxillofacial Surgery, 5. Dischka, 7621, Pecs, Hungary. FAU - Soos, Balazs AU - Soos B AD - University of Pecs, Medical School, Department of Oral and Maxillofacial Surgery, 5. Dischka, 7621, Pecs, Hungary. FAU - Lempel, Edina AU - Lempel E AUID- ORCID: 0000-0002-9839-0515 AD - University of Pecs, Medical School, Department of Conservative Dentistry and Periodontology, 5 Dischka, 7621, Pecs, Hungary. FAU - Mohlhenrich, Stephan C AU - Mohlhenrich SC AUID- ORCID: 0000-0002-7023-991X AD - Department of Orthodontics, University Hospital of Aachen University, Aachen, Germany. AD - Department of Oral and Maxillofacial Surgery, University Hospital of Aachen University, 30 Pauwelsstrasse, 52074, Aachen, Germany. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20190814 PL - England TA - Sci Rep JT - Scientific reports JID - 101563288 SB - IM MH - Animals MH - Cadaver MH - Cattle MH - Humans MH - In Vitro Techniques MH - *Models, Biological MH - Osteotomy/*methods MH - Swine MH - *Temperature PMC - PMC6694164 COIS- The authors declare no competing interests. EDAT- 2019/08/16 06:00 MHDA- 2020/11/11 06:00 PMCR- 2019/08/14 CRDT- 2019/08/16 06:00 PHST- 2018/09/18 00:00 [received] PHST- 2019/08/05 00:00 [accepted] PHST- 2019/08/16 06:00 [entrez] PHST- 2019/08/16 06:00 [pubmed] PHST- 2020/11/11 06:00 [medline] PHST- 2019/08/14 00:00 [pmc-release] AID - 10.1038/s41598-019-48416-6 [pii] AID - 48416 [pii] AID - 10.1038/s41598-019-48416-6 [doi] PST - epublish SO - Sci Rep. 2019 Aug 14;9(1):11817. doi: 10.1038/s41598-019-48416-6.